Colt LE6921CK Complete Upper Receiver Kits 14.5" Bbl

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  • Colt LE6921CK Complete Upper Receiver Kits 14.5" Bbl
  • Colt LE6921CK Complete Upper Receiver Kits 14.5" Bbl
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In 1963 the AR-15 and M16 5.56mm automatic rifles "made Colt the small-arms sensation of modern warfare". Their unmatched accuracy, performance and durability are available in their direct descendent, the Colt semiautomatic-only, sporting rifles. They're ideal for hunting, plinking and competition shooting. This upper assembly comes complete with Magpul adjustable flip-up rear sight, charging handle, bolt and bolt carrier assembly. Featuring a Picatinny-style Flattop, this upper is more than ready to offer the shooter maximum versatility when it comes to mounting accessories or optic devices. this pistol upper has a 14.5" barrel with a removable flash hider.


  • Cartridge 5.56x45mm NATO
  • Material Aluminum
  • Style M4 Polymer
  • Barrel Length 14.5 Inches
  • Twist 1:7 Inches
  • Threads 1/2"-28
  • Barrel Contour M4
  • Sights Yes
  • Barrel Finish Black Parkerized
  • Chrome Lined Yes
  • Gas Block Diameter 0.75 Inches
  • Gas System Length Carbine
  • M4 Feed Ramps Yes
  • Upper Receiver Type A3 Flat-Top
  • Barrel Material Chrome Moly Vanadium Steel
  • Handguard M4 Style Polymer
  • Bolt Carrier Assembly Included Yes
  • Muzzle Device A2 Flash Hider
  • Mil-Spec or Commercial Mil-Spec

WARNING This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to (California law requires this warning to be given to customers in the State of California.)

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Additional Information

Complete Upper Assemblies
Barrel Length:
Made In USA
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